RAJASTHAN PMT Rajasthan - PMT Solved Paper-2006

  • question_answer
    Which of the following is a use of alum?

    A)  Making explosives

    B)         Bleaching clothes

    C)         Water softening

    D)         All of the above

    Correct Answer: C

    Solution :

    Alums are used as water-softner. These are also used in tanning of leather, as mordant in dyeing and to stop bleeding.


You need to login to perform this action.
You will be redirected in 3 sec spinner